I've got a Mauser MM 410b .22 LR that my dad got from his uncle many years ago. It will slide into the receiver and chamber a round and fire it, but will not extract a live or spent round. Also, the bolt release lever stays out when the bolt is installed. In comparing this bolt to photos of the correct bolt, it is apparent that this rifle has the wrong type. Does anyone know where I can possibly find a replacement bolt? I've scoured the internet for spare parts, but thus far have come up with nothing.